Low-energy theorem for virtual Compton scattering and generalized sum rules of the nucleon

被引：5
|
作者：
Gorchtein, Mikhail [1 ]
Szczepaniak, Adam P.
机构：
[1] Indiana Univ, Dept Phys, Bloomington, IN 47403 USA
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 14期
关键词：
D O I：
10.1103/PhysRevLett.101.141601
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We formulate the low-energy theorem for virtual Compton scattering off a nucleon and examine its consequences for generalized nucleon polarizabilites. As a result of a new, model-independent definition of the low-energy limit for doubly virtual Compton scattering, all generalized sum rules of the nucleon have a continuous limit for real photons and obtain contributions from the t channel that were not included previously. © 2008 The American Physical Society.
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页数：4
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